BAC reconstitution water – Bacteriostatic water

Looking to buy bacteriostatic water? AESTX Systems supplies BAC reconstitution water (bacteriostatic water) in tested laboratory quality — a suitable solvent for reconstituting lyophilised research peptides.

Sterile BAC water (benzalkonium chloride water) with an antimicrobial preservative. Used as a standard solvent for reconstituting lyophilised research peptides under laboratory conditions.

Use in the research laboratory

BAC-containing reconstitution water is used in peptide chemistry research to reconstitute lyophilised peptides. Its low BAC content, typically 0.9%, prevents bacterial growth and extends the stability of the reconstituted solution under storage conditions.

AESTX Systems quality standards

• Sterile, suitable for laboratory use
• Standard BAC concentration for peptide reconstitution
• Fast & discreet shipping from Germany (Germany & EU)

Buy bacteriostatic water from AESTX Systems

If you want to buy bacteriostatic water , AESTX Systems supplies BAC reconstitution water in laboratory quality. Bacteriostatic water (BAC water) is sterile water containing 0.9% benzyl alcohol, which inhibits bacterial growth. In research settings, it is used as a solvent for reconstituting lyophilised peptides.

Using BAC water in the laboratory

In routine research, bacteriostatic water is used to turn freeze-dried (lyophilised) reference peptides into a ready-to-use solution. The benzyl alcohol has a bacteriostatic effect, allowing repeated withdrawals from the same container over a longer period without bacterial growth compromising the material. This distinguishes BAC water from ordinary sterile water for injection.

Why choose BAC reconstitution water from AESTX Systems?

• Laboratory quality — sterile water with 0.9% benzyl alcohol
• Ideal for reconstitution — a suitable solvent for lyophilised research peptides
• Multiple withdrawals — a bacteriostatic additive for repeated use in research settings
• Shipping from Germany — fast, discreet delivery within Germany and to Austria
• Research Use Only — exclusively for research and laboratory use

Storage and handling

In routine research, bacteriostatic water is stored in a cool, dry place protected from light. Once first opened, the container is refrigerated; the bacteriostatic additive allows use over several weeks. When preparing peptide solutions, BAC water is added slowly along the container wall to avoid damaging the sensitive lyophilised material. Research and educational institutions looking to obtain bacteriostatic water in Germany receive consistently documented quality from AESTX Systems.

Frequently asked questions about bacteriostatic water

What is bacteriostatic water used for?
In research settings, BAC water is used as a solvent to turn lyophilised reference peptides into a ready-to-use solution.

How does BAC water differ from sterile water?
Bacteriostatic water contains 0.9% benzyl alcohol, which inhibits bacterial growth and allows multiple withdrawals over a longer period.

Are products shipped from Germany?
Yes. Products are shipped quickly and discreetly from Germany to destinations within Germany and Austria.

Research disclaimer: This product is intended exclusively for research and laboratory use. It is not intended for human or animal use as an injectable product. For use only by qualified personnel in suitable research environments.

Buy bacteriostatic water (BAC water) — for peptide reconstitution in the laboratory

Bacteriostatic water, also known as BAC water, is sterile water containing 0.9% benzyl alcohol as a bacteriostatic additive. In laboratory practice, it is the standard solvent for reconstituting lyophilised (freeze-dried) research peptides. The benzyl alcohol inhibits bacterial growth in the prepared solution and allows multiple withdrawals from the same vial in research settings.

Frequently asked questions about bacteriostatic water

What is the difference between bacteriostatic water and sterile water?

Sterile water contains no preservative and is intended for a single withdrawal. Bacteriostatic water contains 0.9% benzyl alcohol, which inhibits microbial growth in the solution, making it suitable in the laboratory for vials used for repeated withdrawals.

How long can BAC water be used after opening?

Unopened bacteriostatic water has a shelf life of several years. Once opened, laboratory practice typically uses a period of around 28 days when stored in a cool place protected from light (2–8 °C).

How much BAC water is used for reconstitution?

This depends on the experimental setup and the desired concentration. Reconstitution ratios can be calculated using our peptide calculator .

What matters when assessing quality?

Sterility, tested composition and a securely sealed septum vial are essential. Each batch of our BAC reconstitution water is tested and intended exclusively for research and laboratory use (Research Use Only).

Note: All information relates to use in research and laboratory settings. Not a product for human use.